1. Shille VM, Olson PN. Dynamic testing in reproductive endocrinology. In: Bonagura JD, editor. Kirk’s current veterinary therapy X, small animal practice. Philadelphia: WB Saunders; 1989, p. 1282–8.
2. The ovarian remnant syndrome in the bitch and queen;Wallace;Vet. Clin. N. Am. Small Anim. Pract.,1991
3. Canine cryptorchidism;Romagnoli;Vet. Clin. N. Am. Small Anim. Pract.,1991
4. Measurement of plasma oestradiol after an injection of gonadotrophin as a test for neutered bitches;Jeffcoate;Vet. Rec.,2000
5. Concannon PW, Lein DH. Hormonal and clinical correlates of ovarian cycles, ovulation, pseudopregnancy, and pregnancy in dogs. In: Bonagura JD, editor. Kirk’s current veterinary therapy X, small animal practice. Philadelphia: WB Saunders; 1989, p. 1269–82.